1 rich Libsyn https://www.libsyn.com 300 600 Cytotoxic T cells use Flower power In order to efficiently kill multiple target cells, cytotoxic T lymphocytes must endocytose and recycle cytotoxic granule membrane components from the immunological synapse.&amp;nbsp;Chang et al.&amp;nbsp;reveal that a protein called Flower facilitates granule endocytosis in a calcium-dependent manner. This biosights episode presents the paper by Chang et al. from the February 5th, 2018, issue of the&amp;nbsp;Journal of Cell Biology&amp;nbsp;and includes an interview with one of the paper's senior authors, Jens Rettig (Saarland University, Saarbrücken, Germany). Produced by Caitlin Sedwick and Ben Short. See the associated paper in&amp;nbsp;JCB&amp;nbsp;for details on the funding provided to support this original research. Subscribe to biosights via&amp;nbsp;iTunes&amp;nbsp;or&amp;nbsp;RSS View&amp;nbsp;biosights archive The Rockefeller University Press biosights@rockefeller.edu biosights http://www.jcb.org/biosights <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/6286010/height/300/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="300" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/content/53675984